1. The First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
2. Department of Gynecology, Guangzhou Baiyun District Maternal and Child Health Hospital, Guangzhou, China
3. Department of Sports Medicine, Guangzhou Sport University, Guangzhou, China
4. Department of Gynecology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
5. Department of Gynecology, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China